NOAEL Data REACH Registered Cosmetic Ingredient

Ensulizole

Also known as: 2-Phenyl-1H-benzimidazole-5-sulfonic acid, EINECS 248-502-0, UNII-9YQ9DI1W42

CAS 27503-81-7

Ensulizole (CAS 27503-81-7) is a chemical substance. Key regulatory status: REACH registered, 4 regulatory/inventory lists, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, AICIS, ECHA REACH.

View cosmetic safety profile for Ensulizole →

SOURCE noael studies public
NOAEL studies
39
SOURCE chemical inventory jurisdictions
Regulatory lists
4
SOURCE eu clp annex vi
GHS signal
Not classified

Chemical Identity

CAS, identifiers, formula, and alternate names for the matched substance record.

SOURCE DSSTox identifiers 9 fields
Name
Ensulizole
CAS Number
27503-81-7
DTXSID
DTXSID3038852
Molecular Formula
C13H10N2O3S
InChI Key
UVCJGUGAGLDPAA-UHFFFAOYSA-N
Monoisotopic Mass
274.041213
Synonyms
2-Phenyl-1H-benzimidazole-5-sulfonic acidEINECS 248-502-0UNII-9YQ9DI1W42

Functional Uses

Industrial and product-use categories associated with this substance.

SOURCE EPA CPDat 12 records
UV stabilizerFragrance

Regulatory Lists

Inventory, screening, and regulatory list matches from public chemical databases.

SOURCE EPA CPDat 4 records
ListKeywordSource
Canada; pharmaceuticalDrugBankDrugBank
Canada; consumer_product; Substances in Products - Canada (4/2014)Government of CanadaCPCat
IFRA TransparencyIFRAIFRA
Europe; Personal careEuropean CommissionCosIng

NOAEL Studies

Toxicology endpoints rendered from public NOAEL study rows.

SOURCE NOAEL studies Showing 39 of 39 studies
ValueUnitEndpointRouteSpeciesSource
200mg/kg bw-oralratUnifiedCodex:SCCS_SHADOW:beta.noael_studies
1000mg/kg bw-oralratUnifiedCodex:SCCS_SHADOW:beta.noael_studies
1000mg/kg bw/day-oralratUnifiedCodex:SCCS_SHADOW:beta.noael_studies
1000mg/kg bw-oralratUnifiedCodex:SCCS_SHADOW:beta.noael_studies
=7mg/m3DNEL systemicinhalationHumanToxValDB_GESTIS_DNEL
9YQ9DI1W42UNIIFDA UNII substance identifier--openFDA substances
9YQ9DI1W42UNIIFDA UNII substance identifier--openFDA substances
9YQ9DI1W42UNIIFDA UNII substance identifier--openFDA substances
9YQ9DI1W42UNIIFDA UNII substance identifier--openFDA substances
=0.125mg/kgNOAELoralratSCCS_vision_codex
=0.125mg/kgNOAELoralratSCCS_vision_codex
=0.125mg/kgNOAELoralratSCCS_vision_codex
=0.125mg/kgNOAELoralratSCCS_vision_codex
=4%NOAELoralratSCCS_vision_codex
=4%NOAELoralratSCCS_vision_codex
=4%NOAELoralratSCCS_vision_codex
=4%NOAELoralratSCCS_vision_codex
=40mg/kg bwNOAELoralratSCCS_vision_codex
=40mg/kg bwNOAELoralratSCCS_vision_codex
=40mg/kg bwNOAELoralratSCCS_vision_codex
=40mg/kg bwNOAELoralratSCCS_vision_codex
=200mg/kg bwNOAELoralratSCCS_vision_codex
=200mg/kg bwNOAELoralratSCCS_vision_codex
=200mg/kg bwNOAELoralratSCCS_vision_codex
=200mg/kg bwNOAELoralratSCCS_vision_codex
1000mg/kg bw/dayNOAELoralratCOSMOS_DB
=1000mg/kg bw/dayNOAEL--SCCS_vision_codex
=1000mg/kg bwNOAELoralratSCCS_vision_codex
=1000mg/kg bw/dayNOAEL--SCCS_vision_codex
=1000mg/kg bwNOAELoralratSCCS_vision_codex
=1000mg/kg bw/dayNOAEL--SCCS_vision_codex
=1000mg/kg bwNOAELoralratSCCS_vision_codex
=1000mg/kg bw/dayNOAEL--SCCS_vision_codex
=1000mg/kg bwNOAELoralratSCCS_vision_codex
=0.125mg/kgdermal absorptionoralratUnifiedCodex:SCCS_SHADOW:beta.noael_studies
4%dermal absorptionoralratUnifiedCodex:SCCS_SHADOW:beta.noael_studies
=40mg/kg bwdermal absorptionoralratUnifiedCodex:SCCS_SHADOW:beta.noael_studies
200mg/kg bwdermal absorptionoralratUnifiedCodex:SCCS_SHADOW:beta.noael_studies
1000mg/kg bw/daygenotoxicity--UnifiedCodex:SCCS_SHADOW:beta.noael_studies

Showing 39 of 39 studies

REACH Registration

Registration status from the ECHA REACH registered substances database.

SOURCE ECHA (EU) 1 records
StatusNameEC NumberLink
Registered2-phenyl-1H-benzimidazole-5-sulphonic acid248-502-0ECHA overview →

Australian Status (AICIS)

Australian industrial chemicals inventory status and applicable conditions.

SOURCE AICIS inventory 1 records
Inventory Status
listed

Cosmetic Safety Profile

Same-CAS cosmetic ingredient record for cross-vertical context.

SOURCE CosIng / Ingredients DB
EU Status
permitted
Max
4%
Category
active
View full cosmetic safety profile →

Pharmaceutical Data

Same-CAS pharmaceutical records from drug and bioactivity sources.

SOURCE EMBL-EBI ChEMBL ENSULIZOLE
ChEMBL Phase
2
Adverse Events
0
Bioactivity
3
View full pharmaceutical profile →

Frequently Asked Questions

What is the NOAEL for Ensulizole?

Ensulizole has 39 NOAEL studies in the database. The lowest reported value is 0.125 mg/kg via oral in rat. Source: SCCS_vision_codex.

What regulatory lists include Ensulizole?

Ensulizole appears on 4 regulatory/inventory lists including Canada; pharmaceutical, Canada; consumer_product; Substances in Products - Canada (4/2014), IFRA Transparency, and 1 more. Source: EPA CPDat.

Is Ensulizole used in cosmetics?

Yes, Ensulizole is also indexed as a cosmetic ingredient under the name Ensulizole. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.

Where does the safety data for Ensulizole come from?

Safety data is sourced from EPA ToxValDB, EPA CPDat, AICIS (Australian Industrial Chemicals Introduction Scheme), EPA DSSTox, ECHA REACH, CosIng / Ingredients DB, ChEMBL / DailyMed. All data traces to primary regulatory sources and is updated from official government databases.

Is Ensulizole used outside industrial chemicals?

Ensulizole also appears in cosmetics, pharmaceutical databases.